Generator.



W. s'. PERRY. GENERATOR. APPLICATION FILED SEPT. 19, 1910.

Patented Dec. 29, 1914.

4 SHEETSSHEET 1.

W. S. PERRY.

GENERATOR.

APPLICATION FILED SEPT. 19, 1910.

1 1 22,534, Patented Dec. 29, 1914.

4 SHEETS-SHEET 2.

W. S. PERRY.

GENERATOR. I APPLICATION FILED SEPT.19, 1910. 1, 1 22,534. Patented Dec. 29, 1914.

4 SHEETS-SHEET 3.

VEI E1DJ5\ 417 61 6. Perry PERRY.

ERATOR.

EFT 19, 1910.

Patented Dec. 29, 1914.

4 SHEETS-SHEET I.

- GEN APPLICATION r UNITED STATES PATENT OFFICE.

S. PERRY, OF CHICAGO, ILLINOIS, ASSIGNOR TO VESTA ACCTJ'MU'LA'IOB (30., OF

CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

GENERATOR.

Specification of Letters Patent. Patented De 29 1914 Application filed September 19, 1910. Serial No. 582,622.

To all whom it may concern:

Be it known that I, WARD S. PERRY, a

citizen of the United States, and a resident of the city of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Generators; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, and to the numbers of reference marked thereomwhich.

' tinuously from the engine. This has heretofore proven' more efiective for boats or launches than for automobiles on .account of the greater uniformity of the operation of the engines in boats than in automobiles. It has been found in practice that the rate of drive of the engines in automobiles varies through a very widera-nge and in consequence where the generator is driven from the engine, the charging rate constantly varies owing to the difference in the rate of rotation of the armature shaft.

My invention is designed to provide an,

improved and extremely compact means for supplying a uniform current by the use of a centrifugal governor which acts to vary the line resistance by increasing the resistance in the line proportionately to the increased speed of the. generator shaft.

The invention .consists in the matters hereinafter described and more fully pointed out and defined in the appended claims.

In the drawings: Figure 1 is a side elevation partly broken away, of a generator,

rheostat, and governor embodying my in:

vention. Fig. 2 is an elevation taken at the governor end of the'device. Fig. 3 is a similar elevation taken at thecommutator end of the generator. Fig. 4 is a section on line 14 of Fig. 1. Fig. 5 is a section on line 5-5 of Fig. 1. Fig. 6 is a section taken on line 6-6 of Fig. 2. Fig. 7 is a section taken. on line 77 of Fig. 1.. Fig. 8 is a section taken on line 8-8 of Fig. 6. Fig. 9 is a diagrammatic view showing'the generator, battery and regulator and indicating the chamber therefor, and

manner in which the regulator opens and closes the circuit.

As shown in the drawings: The generator is constructed with permanent horseshoe magnets 1 and 2, and soft iron field pieces 3,

between which the armature shaft 4, carrying the armature 5, (which may be of any suitable type) rotates. As shown, a brass or other non-magnetic base 6, affords a support for saidfield pieces and magnets, and is shaped to fit closely to the armature. As

soft iron field pieces 3, above the armature and between said magnets is a brass or other non-magnetic spacing member 7.

An end wall 8, is secured to the end of thegenerator by means of screws 99, which extend into-the base 6, and top 7, above and below the armature, and is provided with-an outwardly extending hub or bearing 9, in which one end of the armature shaft 4:, is

journaled. At the opposite end of the ar-' mature is secured a'housing or casing 10, which fits around the commutator 11, as shown in Fig. 6, and affords a dust proof extending beyond said casing is a hub or bearing 13, in which the end of said armature shaft is journaled;

Brushes 131, of any suitable kind, are engaged on the casing inclosing the commutator, and insulated therefrom. Supported upon the hub or hearing 9, for the armature shaft is an upwardly directed insulating slab or bracket 14, of any suitable insulating material, upon and extending through which to afford contacts on the opposite side thereof are binding posts 15 and 16. Said contact faces on the opposite side'off the slab are arranged with their faces in the same plane andin parallel arcs concentric with a pivot pin or screw '17, whereby a contact arm 18, is pivotally secured upon the bracket 19, which also affords a part of the support for said slab or insulated plate 14.

Inserted within the magnets 1 and 2 and, above the armature andfiXed to the end wall extend through the wall thereof and con shown in Figs. 6 and 7, and fitted over the nect with the coil of wire, asshown. in Figs. 1 and (i, in each instance cutting in a part of the coil. depending upon the rate of drive of the armature shaft to afford the required current. The next succeeding pair of contact members 24 and 25, are connected'in a similar manner with the next succeeding coil sections and in a similar manner, the contacts nearer toward the inner end of said slab are connected by means of their binding posts with wires cutting off proportionately larger portions of the coil of the rheostat. \Vhen the contact arm is at its inner position, the contact shoes 36 and 37, rest upon the deadcontacts 45 and 46 and no current can flow from the device. slight rotation of the armature, however, will cause the contact arm to be moved into contact with the binding posts 15 and 16. The end of coil 32, leads outwardly from the rheostat, and is suitably connected with the accumulator or battery as is also the lead wire 33, from the appropriate brush 131. The lead wire 34, from the opposite brush, leads upwardly and through the bore in said insulating shell 20, and is secured upon the slab 14, and thence the end is led downwardly and through the lever 18, and thence upwardly, and is secured by means of a binding screw 35, to resilient contact shoes or fingers 36, 37 which are secured on said arm 18, and insulated therefrom, and which at all times are in position to bear upon the respective contacts on the slab 14.

Slidably secured on said armature shaft 4, in close relation with the hub 9, is a .collar 38 having two peripheral grooves therein, in the innermost of which is engaged a pin 39, secured on the arm 18, as shown in Figs. 1 and 5. Rigidly secured on the outer end of said shaft is a bar 40, the ends of which are directed inwardly in parallel relation on opposite sides of the shaft, and a weight 41, is pivotally engaged on each of said arms and is directed outwardly therefrom and is integrally connected with an inwardly extending arm 42, provided with a pin 43, engaging inthe other of said grooves in said collar. As shown, a strong pulling spring 44, connects the outwardly directed ends of said weights, as shown in Figs. 1 and 6, and, acts to hold said weights inwardly against the outer or centrifugal throw thereof due to the rotation of the armature shaft.

Any suitable gear, sprocket wheel, or driving pulley is secured on the end of the armature shaft remote from the centrifugal governor before described, and this is directly connected with the internal combustion engine in any suitable manner.

The operation is as follows: When the engine is first started up or when the engine is running slowly for any reason or at any time, the centrifugal force exerted by the weights, is not sufficient to more than more the contact fingers beyond engagement with the contact piece 16, but as the speed increases and the governor begins to operate, the lever 18 is shifted on its pivot 17 thereby until the slide 36 contacts with contact piece 15, thus completing the circuit through the rheostat, but bringing into the circuit only that portion or section of the coil beyond the point of connection of the conductor 24, therewith, as shown in Figs. 1 and 6. As the engine rate increases, the outward movement of the governing weights acting to pull said sleeve or collar 38 outwardly and longitudinally of the shaft, progressively moves the contact fingers inwardly over succeeding contacts, thus, as the engine rate increases, successively bringing more of the resistance into the circuit and thereby maintaining the flow of current to the accumulator at a uniform rate. Should the rate of the engine decrease, the pull of the spring the resistance previously .in the circuit and reduces the resistance to maintain the uniform charging current for the battery.

While I have shown a generator in which permanent magnets are used, it is, of course, possible to construct a device such as described with-current energized magnets instead, and, of course, my invention is capable of being embodied in numerous forms. The construction shown is of great importance and utility as utilizing space to I the utmost in a construction in which the available space for installation is necessarily small owing to the other constructions with which the device is to be used, as, for instance, in the sparking and lighting system of an automobile.

Numerous variations in the arrangement of the various parts of the device will readily suggest themselves, and I therefore do not purpose limiting myself otherwise than necessitated by the prior art.

I claim as my invention:

1. A generator embracing a mature, a field magnet therefor, an end wall for said generator, an insulating tube mounted on said wall between the legs of said magnet and in parallel relation to said armature, variable resistance coils around the periphery of said tube, and means operated by the rotation of said armature for rotative arincreasing the resistance proportionately to the increase of speed.

44, automatically cuts out 2. In a device of the character described,

a generator embodying field magnets and an armature, an end wall for said generator, an insulating tube mounted on said end wall between the legs of said magnets and in parallel relation to the armature, a series of resistance coils formed on the periphery of said tube, a rheostat plate, wire connections between said plate and resistance coils,

a pivoted contact arm for engagement with the contacts on the rheostat plate; and means on the armature shaft for controlling said contact arm:

8. In a device of the character described, a generator embodying a base, magnets and pole pieces supported by said base, an armatnrc mounted to rotate between said pole pieces, an armature shaft, a non-magnetic spacing member mounted on said pole pieces and extending over said armature,

an end Wall connected to said base and spacing member, an insulating tube mounted on said end Wall above the spacing member and in parallel relation to said armature.

In testimony whereof I havehereunto subscribed my name in the presence of two subscribing Witnesses.

WARD S. PERRY. Witnesses:

C. W. HILLS, CHARLES W. HILLS, J r. 

